Home / 299,315,738.40-449,215,424.40-126,913,609.86

Finding the Fourth Proportional to 299,315,738.40, 449,215,424.40 and 126,913,609.86

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Solution

The fourth proportional to 299,315,738.40, 449,215,424.40 and 126,913,609.86 is: 190,472,948.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,315,738.40 : 449,215,424.40 = 126,913,609.86 : x
  2. Step 2: Convert to fraction form
    299,315,738.40/449,215,424.40 = 126,913,609.86/x
  3. Step 3: Cross multiply
    299,315,738.40x = 449,215,424.40 × 126,913,609.86
  4. Step 4: Simplify right side
    299,315,738.40x = 57,011,551,115,395,920
  5. Step 5: Solve for x
    x = 57,011,551,115,395,920/299,315,738.40
  6. Step 6: Final answer
    x = 190,472,948.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.